Plug and go! Verbatim Wireless Notebook Optical Mice work great for laptop and desktop users. With a receiver thats small enough to plug into your computer and leave, these mice offer 2.4 GHz wireless performance " that means no delays in cursor movements and fewer cords to pack. The receiver can be stored inside the battery compartment for safekeeping. A 1200 DPI optical sensor provides smooth, precise tracking while the sleek design offers a smooth, contoured comfort grip for right or left hand use. Small enough to fit easily into bags and totes, Verbatim Wireless Notebook Optical Mice make it easy to plug and go! Contoured, comfort grip fits the hand and ideal for right or left hand use Wireless " 2.4GHz wireless reliability and performance Nano receiver " small enough to plug in and leave connected, may be stored inside mouse 1200 DPI " provides smooth, precise tracking.